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Finding the Fourth Proportional to 64,903.85, 97,361.24 and 20,529.62

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Solution

The fourth proportional to 64,903.85, 97,361.24 and 20,529.62 is: 30,796.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,903.85 : 97,361.24 = 20,529.62 : x
  2. Step 2: Convert to fraction form
    64,903.85/97,361.24 = 20,529.62/x
  3. Step 3: Cross multiply
    64,903.85x = 97,361.24 × 20,529.62
  4. Step 4: Simplify right side
    64,903.85x = 1,998,789,259.93
  5. Step 5: Solve for x
    x = 1,998,789,259.93/64,903.85
  6. Step 6: Final answer
    x = 30,796.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.